The value we see in things is based on what we get out of it, rather than what we put into it. This is true in all aspects of life. This is also why I don’t factor cost into my reviews, because a 99-cent game is too much for a homeless person and $100 is nothing for a rich person. Time is the only investment that matters to everyone.
And here is the part where I tell you that Serious Sam: The Random Encounter is roughly an hour-long. But, it's an hour worth an hour of our time.